2018 Western Star 4900 recalls

• Tires#2021706November 17, 2021

  948 units affected

  Issue: Certain trucks were built with tires that are not approved for use with the truck's wheels. As a result, the tires may not perform properly, or a tire could fail. Safety Risk: A tire failure could cause a loss of control and increase the risk of a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail. The corrective actions for this recall are under development. You will be instructed to bring your truck to a DTNA authorized service facility when a repair is available.

• Electrical#2021697November 12, 2021

  3,071 units affected

  Issue: On certain trucks, the pass-through power stud (an electrical connection located on the bulkhead) may come into contact with the bulkhead. If this happens, there could be electrical arcing (sparks). Note: This recall replaces FL-766 (Transport Canada Recall 2018-190). If your truck was inspected as a part of that recall, but the pass-through power stud was not replaced, your truck requires this repair. Safety Risk: Electrical arcing could create the risk of a fire. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to replace the pass-through power stud.

• Powertrain#2020488October 16, 2020

  966 units affected

  Issue: On certain trucks equipped with an Eaton automated manual transmission and electronic clutch actuator (ECA), a component within the clutch assembly could fail. If this happens, the broken clutch components could prevent the transmission from disengaging or shifting to neutral. This could result in unintended vehicle movement, even if the parking brake is applied. Note: This recall replaces FL-803 (Transport Canada recall 2018-714). Trucks that were repaired under that recall also require this repair. Safety Risk: Sudden and unexpected movement of the vehicle could create a risk of injury or a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to replace the clutch and update the transmission software.

• Structure#2019552November 4, 2019

  2,078 units affected

  Issue: On certain trucks, the strut-rod for the sleeper cab vent windows may not be properly attached. This could cause the vent window to over rotate and detach from the vehicle. Safety Risk: A window that separates from a moving vehicle could create a hazard for other drivers and nearby people. Corrective Actions: The company will notify owners by mail and instruct them to take their vehicle to a Daimler Trucks of North America authorized service facility to replace the vent windows.

• Structure#2019508October 10, 2019

  2,427 units affected

  Issue: On certain trucks, the baggage and/or sleeper side doors may not be properly attached to their hinges. This could cause the door(s) to detach while driving. Safety Risk: A baggage and/or sleeper side door that falls from the truck could create a road hazard for others and increase the risk of a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your vehicle to a DTNA authorized service facility to install two reinforcement clips on each baggage and sleeper door hinge.

• Brakes#2019237May 17, 2019

  110 units affected

  Issue: Certain trucks were built with air reservoir tanks that are too small in relation to the size of the air brake chambers. Canadian regulations require enough air reservoir capacity to ensure the brakes work even with heavy use or when there is a partial loss of the air system. Safety Risk: Reduced braking could cause extended stopping distances and increase the risk of a crash. Corrective Actions: The company will notify owners by mail and instruct them to take their truck to a Daimler Trucks North America authorized service facility to modify the truck to ensure it meets Canadian regulations.

• Steering#2018719December 20, 2018

  31 units affected

  On certain vehicles, the bolts that join the steering and tie rod arm to the steering knuckle may not have been properly tightened. This could lead to a separation of the tie rod arm and cause a loss of steering control. This could create a risk of a crash causing injury and/or property damage. Correction: Daimler Trucks North America Authorized Service Facilities will inspect the steering and tie rod arm bolts to ensure they are torqued correctly and install new fasteners as necessary.

• Powertrain#2018714December 19, 2018

  1,472 units affected

  This recall was replaced by Transport Canada Recall No. 2020-488. On certain vehicles equipped with an Eaton automated manual transmission and electronic clutch actuator (ECA), an internal component within the clutch assembly may have been manufactured improperly and could fail. If this occurs, the broken clutch components could prevent the transmission from disengaging or shifting to neutral. This could result in unintended vehicle movement, even if the parking brake is applied, increasing the risk of a crash causing injury and/or damage to property. Correction: Daimler Trucks of North America Authorized Service Facilities will recalibrate the Transmission Control Module (TCM) and replace components as necessary.

• Fuel System#2018469August 31, 2018

  259 units affected

  On certain trucks built with a Cummins X15 or ISX15 engine equipped with nylon fuel lines and a banjo bolt on the fuel pump, a blockage in the fuel cooling system may cause a fuel line to burst. This could result in a significant fuel leak onto the roadway, which would create a road hazard for other motorists. Additionally, this condition could also cause an engine stall without warning, without the ability to restart the engine. Both of these conditions may increase the risk of a crash causing injury and/or damage to property. Correction: Cummins-authorized dealers will replace the affected nylon line with a steel line.

• Brakes#2018285May 30, 2018

  683 units affected

  On certain vehicles equipped with air disc brakes, the brake caliper mounting bolts may be incorrectly torqued. This could result in the caliper bolts loosening, which could lead to the caliper detaching. Insufficiently torqued fasteners may not provide adequate clamping force between the brake caliper and brake anchor plate potentially resulting in reduced brake effectiveness, which would result in increased stopping distances, increasing the risk of a crash causing injury and/or damage to property. Correction: Daimler Trucks of North America Service Facilities will inspect the bolts, and repair as necessary. Note: This recall supersedes recall 2017-580. Vehicles repaired as part of the previous recall will require re-inspection and repair.

• Brakes#2018283May 29, 2018

  339 units affected

  Certain vehicles built with front disc brakes and a Lomax hood may not have enough clearance between the hood and the front brake hose. This could cause chafing of the brake hose, which could lead to an air leak resulting in reduced brake effectiveness and increasing the risk of a crash causing injury and/or property damage. Correction: Authorized dealers will replace the front brake hose. Note: A leaking front brake hose may not be detectable during a routine pre-trip inspection.

• Brakes#2017583November 28, 2017

  41,763 units affected

  On certain vehicles with air brakes, after several hard brake applications, the brake light pressure switch may not activate the brake lights with a light application of the brake pedal. If the brake lights do not illuminate, following road users would be unaware of the intent of the driver to slow the vehicle, which could increase the risk of a crash causing injury and/or damage to property. Correction: Daimler Trucks North America authorized service facilities will repair the brake light pressure switch.

• Suspension#2017407August 24, 2017

  23 units affected

  On certain vehicles, the front axle weight limit may be greater than the front spring capacities. If the axle load exceeds the maximum weight capacity of the springs, the springs could fatigue and potentially lead to the front axle separating from the vehicle. This would result in a loss of vehicle control, and increase the risk of a crash causing injury and/or damage to property. Correction: Daimler Trucks North America authorized service facilities will replace the front axle springs.

• Fuel System#2017358July 18, 2017

  38 units affected

  On certain vehicles equipped with Cummins ISX 15 engines and certain fuel pumps, the drive gear on the fuel pump may spin loose on the drive shaft. This could result in a loss of pumping function, which could result in an engine stall without warning and not being able to be restarted, which could increase the risk of a crash causing injury and/or damage to property. Correction: Cummins-authorized dealers will replace the fuel pump.

• Brakes#2017130March 10, 2017

  199 units affected

  On certain vehicles outfitted with triple compartment aluminium air tanks, the end caps of the tanks may have received incomplete welds during manufacturing. If a weld were to separate on the tanks, it would result in a rapid loss of air pressure, which could cause reduced brake performance, or unexpected application of the parking brakes, increasing the risk of a crash causing injury and/or damage to property. Correction: Dealers will replace the affected tanks with triple compartment steel air tanks.

Canadian data updated August 24, 2026

• TIRES#21V896000November 17, 2021

  Daimler Trucks North America, LLC (DTNA) is recalling certain 2012-2021 Freightliner SD 108, Freightliner SD 114, 2016-2020 Freightliner Coronado, 2013 Western Star 6900, 2013-2022 Western Star 4700, Western Star 4900, and 2022 49X vehicles. The tires and rims are not approved and rated for these vehicles from the Tire and Rim Association or tire manufacturer. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 120, "Wheels and Rims-Other Than Passenger Cars."

  Risk: Unapproved tires that are not rated for the vehicle can cause tire performance issues, increasing the risk of a crash.

  Remedy: Dealer will inspect and replace, as necessary, tires and rims, free of charge. Interim owner notification letters were mailed January 14, 2022. Owner notification letters were mailed on April 22, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall FL-908.

• ELECTRICAL SYSTEM:WIRING#21V882000November 12, 2021

  Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Western Star 4700, 4900, 5700, and 6900 trucks. The affected trucks have a power stud that passes through the bulkhead. In certain circumstances, the power stud may contact the bulkhead and result in an electrical arc.

  Risk: An electrical arc can increase the risk of a fire.

  Remedy: Dealers will replace the pass-through power studs, free of charge. Owner notification letters were mailed January 7, 2022. This recall supersedes previous recall number 18V-191. Vehicles previously inspected and considered complete under 18V-191 will need to return for the new remedy. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-907.

• POWER TRAIN:CLUTCH ASSEMBLY#20V642000October 16, 2020

  Daimler Trucks North America LLC (DTNA) is recalling certain 2018-2019 Freightliner Cascadia, Business Class M2, 108SD, 114SD and 122SD and Western Star 4700, 4900 and 5700 vehicles. An internal component within the clutch assembly may fail, which in certain circumstances could allow the vehicle to move unexpectedly.

  Risk: Unintended vehicle movement van increase the risk of a crash.

  Remedy: DTNA will notify owners, and dealers will update the software and replace the clutches, free of charge. DTNA issued owners an interim notification on December 7, 2020. Owner notification letters were mailed on May 28, 2021. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-865.

• VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW#19V792000November 4, 2019

  Daimler Trucks North America LLC (DTNA) is recalling certain 2016-2020 Western Star 4900 and 5700 vehicles equipped with sleeper cab vent windows. Due to improper adhesive, the vent window may detach from the vehicle.

  Risk: If the vent window detaches while the vehicle is in motion, it can become a road hazard, increasing the risk of a crash.

  Remedy: DTNA will notify owners, and dealers will replace the vent windows, free of charge. DTNA issued owners an interim notification on December 27, 2019. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-836.

• STRUCTURE:BODY:DOOR#19V722000October 10, 2019

  Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2020 Western Star 4900 and 5700 vehicles. The adhesive bond may fail allowing the baggage or sleeper side door to separate from the hinges.

  Risk: A baggage or sleeper side door that separates from the vehicle while in motion can cause road debris, increasing the risk of an injury or crash.

  Remedy: DTNA will notify owners and dealers will install reinforcement clips with mechanical fasteners on each baggage and sleeper door hinge, free of charge. DTNA issued owners an interim notification on December 6, 2019. The recall began September 21, 2020. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL834.

• POWER TRAIN:CLUTCH ASSEMBLY#18V903000December 19, 2018

  Daimler Trucks North America LLC (DTNA) is recalling certain 2018-2019 Freightliner 108SD, 114SD, 122SD, Cascadia, Business Class M2, Western Star 4700, 4900, and 5700 vehicles, equipped with certain Eaton ECA heavy-duty truck clutches. An internal component in the clutch assembly may fail, possibly resulting in unintended vehicle movement.

  Risk: Unintended vehicle movement can increase the risk of a crash.

  Remedy: DTNA will notify owners, and dealers will update the software, and repair any physical components, free of charge. DTNA issued owners an interim notification on February 16, 2019. The recall began July 31, 2019. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-803.

• STEERING#18V913000December 19, 2018

  Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Freightliner 114SD, 122SD, 108SD, Cascadia and Business class M2 trucks, Freightliner Custom Chassis XBS, XCL, XCM, MT45, MT55, S2G, S2RV, XCR and XCS custom chassis and Western Star 4700, 4900 and 5700 trucks equipped with Detroit Axle axles. The affected vehicles may have loose steering and tie rod arm bolts.

  Risk: Loose tie rod arm bolts may lead to separation of the tie rod arm, resulting in a loss of vehicle control, increasing the risk of a crash.

  Remedy: DTNA has notified owners, and dealers will inspect the steering arm and tie rod arm bolts for to make sure that they are properly tightened, installing new fasteners as necessary, free of charge. The recall began February 9, 2019. Owners may contact Daimler Trucks at 1-800-547-0712. DTNA's number for this recall is FL-802.

• SERVICE BRAKES, AIR:DISC:CALIPER#18V703000October 5, 2018

  Daimler Trucks North America, LLC (DTNA) is recalling certain 2018-2019 Freightliner 108SD, 114SD, Cascadia, Business Class M2, Freightliner Custom Chassis Corporation S2C 106 Cab, S2G Cab Chassis, XCL, XCM, XBS, XCP, XCR, Western Star 4700, 4900 and 5700 trucks. The brake caliper mounting bolts may have been insufficiently tightened.

  Risk: Loose brake caliper mounting bolts can reduce brake effectiveness, increasing the risk of a crash.

  Remedy: DTNA will notify owners, and dealers will check and tighten the brake caliper mounting bolts, free of charge. The recall began December 3, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-794.

• ENGINE AND ENGINE COOLING:ENGINE:DIESEL#18V581000August 30, 2018

  Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Freightliner Cascadia, Coronado and 122SD, and Western Star 4900 trucks, equipped with Cummins ISX15 or X15 diesel engines. In certain driving conditions, such as on a long down-hill grade, the fuel line may burst if the fuel pump cooling circuit screen becomes restricted.

  Risk: If the fuel line bursts, fuel may leak onto the road resulting in a roadway hazard for other motorists. The engine may also stall without warning, resulting in the vehicle's inability to restart, increasing the risk of a crash.

  Remedy: Dealers will replace the affected nylon fuel line with a steel fuel line, free of charge. The recall began November 21, 2018. Owners may contact DTNA customer service at 1-800-547-0712 or Cummins customer service at 1-800-286-6467. DTNA's number for this recall is FL789.

• SERVICE BRAKES, AIR#18V351000May 29, 2018

  Daimler Trucks North America LLC (DTNA) is recalling certain 2012-2019 Western Star 4900 trucks built with Lowmax hoods and disc brakes. There may be insufficient clearance between the front brake hose and the hood resulting in the brake hose being chafed.

  Risk: Front brake hose chafing may causing air loss, possibly reducing braking effectiveness and increasing the risk of a crash.

  Remedy: DTNA will notify owners, and dealers will replace the front axle brake hose, free of charge. DTNA issued owners an interim notification on July 27, 2018. The recall began November 27, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-773.

• SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER#18V353000May 29, 2018

  Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Freightliner M2 Business Class, 108SD, 114SD and Cascadia trucks, Western Star 4700, 4900, and 5700 trucks, FCCC S2C 106 Cab, S2G Cab, XBR, XBS, XCL, XCM, XCP, XCR, and XCS chassis equipped with air disc brakes. The brake caliper mounting bolts on these vehicles may be insufficiently tightened, allowing the bolts to loosen.

  Risk: If the brake caliper mounting bolts loosen, braking performance may be reduced, increasing the risk of a crash.

  Remedy: DTNA will notify owners, and dealers will inspect the brake caliper mounting bolts and tighten them as necessary, free of charge. DTNA issued owners an interim notification on July 25, 2018. The recall began September 4, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-772.

• ELECTRICAL SYSTEM:WIRING#18V191000March 26, 2018

  Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Western Star 4700, 4900, 5700, and 6900 trucks. The affected trucks have a power stud that passes through the bulkhead. In certain circumstances the power stud may contact the bulkhead and result in an electrical arc.

  Risk: An electrical arc can increase the risk of a fire.

  Remedy: DTNA will notify owners, and dealers will inspect the power stud for the proper clearance to the bulkhead, and replace it if necessary, free of charge. DTNA issued an interim notification to owners on May 23, 2018. The recall began October 29, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-766.

• EXTERIOR LIGHTING:BRAKE LIGHTS#17V761000November 28, 2017

  Daimler Trucks North America, LLC (DTNA) is recalling certain 2008-2018 Freightliner Cascadia, Western Star 4700, 4900, 5700, and 6900 trucks. After hard brake applications, the brake light pressure switch may not activate the brake lights with a light application of the brake pedal.

  Risk: If the brake lights fail to illuminate, there would not be a signal to other motorists that the vehicle is slowing, increasing the risk of a crash.

  Remedy: DTNA will notify owners, and dealers will repair the vehicles, free of charge. Daimler issued interim notifications to owners on January 22, 2018. The recall began on May 9, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-756.

• SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY#17V521000August 24, 2017

  Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2018 Western Star 4900 trucks. The front axle weight capacity may exceed the spring capacity.

  Risk: Overloaded springs may result in the front axle separating from the vehicle, increasing the risk of a crash.

  Remedy: DTNA will notify owners, and dealers will replace the front axle springs, free of charge. The recall began on October 16, 2017. Owners may contact DTNA customer service at 1-800-745-8000. DTNA's number for this recall is FL-745.

• FUEL SYSTEM, DIESEL#17V450000July 19, 2017

  Daimler Trucks North America (DTNA) is recalling certain 2017-2018 Freightliner 122SD trucks, Western Star 4900 and 6900 trucks, and Freightliner Custom Chassis XCM and XCP chassis equipped with Cummins ISX15 engines. The affected engines have a fuel pump whose drive gear may slip on its drive shaft, resulting in a loss of fuel pump function.

  Risk: Failure of the fuel pump will result in a sudden engine stall with no warning, and with no ability to restart, increasing the risk of a crash.

  Remedy: Cummins will send notices to the owners of the affected vehicles and Cummins dealers will replace the fuel pumps, free of charge. The recall began on September 11, 2017. Owners may contact Cummins customer service at 1-800-286-6467 or DTNA customer service at 1-800-745-8000. DTNA's number for this recall is FL744.

• SERVICE BRAKES, AIR#17V124000February 27, 2017

  Daimler Trucks North America LLC (DTNA) is recalling certain 2015-2018 Western Star 4900 trucks. The aluminum air tanks on these vehicles may have improper welds possibly resulting in a rapid loss of air pressure.

  Risk: A rapid loss of air pressure without warning may cause a sudden application of the park brakes, increasing the risk of a crash.

  Remedy: DTNA will notify owners, and dealers will replace the aluminum air tanks with steel, triple compartment, air tanks, free of charge. The recall began on April 27, 2017. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-732.